Privacy Policy for English Fluency App

Last Updated: January 20, 2026

Introduction

Welcome to English Fluency App ("we," "our," or "us"). We are committed to protecting your privacy and ensuring the security of your personal information. This Privacy Policy explains how we collect, use, disclose, and safeguard your information when you use our mobile application (the "App").

Please read this Privacy Policy carefully. By using the App, you agree to the collection and use of information in accordance with this policy.

1. Information We Collect

1.1 Personal Information You Provide

When you create an account and use our App, we collect the following information:

Phone Number: Used for authentication and account creation via OTP
Name: First name and last name for your profile
Date of Birth: To verify age requirements (13+ years)
Gender: For matchmaking preferences
Country: For regional matching and statistics
Profile Photo: Optional photo you upload
Interests: Topics you select for conversation practice

1.2 Information Collected Automatically

Device Information (device ID, model, OS version)
Usage Data (call duration, call history, practice sessions)
Chat Messages between friends
Interaction Data (features used, screens viewed)

            Important: We do NOT record or store voice call audio. Audio is only transmitted in real-time during calls.
        

2. How We Use Your Information

Authenticate your account via phone number
Match you with conversation partners
Facilitate live voice calls
Enable friend connections and messaging
Track your practice streaks and progress
Provide AI-powered conversation practice
Send push notifications for incoming calls
Improve app features and fix issues

3. How We Share Your Information

We do NOT sell your personal information. We share your information only in limited circumstances:

3.1 With Other Users (Limited Information)

Other authenticated users can see your first name, last name, gender, country, and profile photo when you appear in matchmaking or friend requests.

3.2 With Service Providers

Google Firebase: Authentication, database, storage, messaging
Agora: Real-time voice communication
Google Gemini AI: AI conversation practice

4. Data Retention

We retain your information for as long as your account is active:

Account Data: Until you delete your account
Call History: Retained for your statistics
Voice Call Audio: NOT stored (real-time only)
Profile Photos: Until you delete or replace them

Account Deletion

When you delete your account, all your personal data is permanently removed within 30 days.

5. Data Security

Encryption: All data transmitted using HTTPS/TLS
Firebase Security Rules restrict unauthorized access
Phone-based OTP authentication required
Re-authentication required for sensitive operations
API keys are secured and protected

6. Your Privacy Rights

Access: View your data in the App settings
Correction: Edit your profile information
Deletion: Delete your account anytime
Opt-Out: Disable notifications in device settings

7. Children's Privacy

            Our App is intended for users aged 13 and older. We do not knowingly collect information from children under 13.
        

8. Third-Party Services

The App uses the following third-party services:

Firebase (Google) - Privacy Policy
Agora - Privacy Policy
Google Gemini AI - Privacy Policy

9. International Data Transfers

Your information may be transferred to servers located in the United States and other regions. We ensure compliance with applicable data protection laws.

10. California Privacy Rights (CCPA)

California residents have additional rights including:

Right to know what information we collect
Right to delete your information
Right to opt-out of sale (we do not sell data)

11. European Privacy Rights (GDPR)

EEA residents have rights under GDPR including:

Right to access, rectify, and erase your data
Right to data portability
Right to object to processing
Right to lodge a complaint with authorities

12. Changes to This Policy

We may update this Privacy Policy from time to time. Material changes will be notified via push notification or email.

13. Data Collection Summary

Data Type	Purpose	Shared With
Phone Number	Authentication	Firebase Auth
Name	Profile display	Other users
Profile Photo	Profile display	Other users
Voice Audio	Real-time calls	NOT STORED
Chat Messages	Messaging	Friend only
AI Conversations	Feedback	Google Gemini (temporary)

14. Contact Us

If you have questions about this Privacy Policy, please contact us:

Email: support@englishfluencyapp.com
Response Time: Within 5 business days

15. Your Consent

By using the English Fluency App, you consent to this Privacy Policy and agree to its terms. If you do not agree, please do not use the App.